alert(dateObj) gives Wed Dec 30 2009 00:00:00 GMT+0800
How to get date in format 2009/12/30?
info
If a 2 digit month and date is desired (2016/01/01 vs 2016/1/1)
code
var dateObj = new Date();
var month = ('0' + (dateObj.getMonth() + 1)).slice(-2);
var date = ('0' + dateObj.getDate()).slice(-2);
var year = dateObj.getFullYear();
var shortDate = year + '/' + month + '/' + date;
alert(shortDate);
output
2016/10/06
fiddle
https://jsfiddle.net/Hastig/1xuu7z7h/
credit
More info from and credit to this answer
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To learn more about .slice the try it yourself editor at w3schools helped me understand better how to use it.